HomeGates 38299 Accessory Drive Belt Tensioner Assembly
Part #: 38299

Gates 38299 Accessory Drive Belt Tensioner Assembly

DriveAlign Premium OE Automatic Belt Tensioner
10 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
DriveAlign Premium OE Automatic Belt Tensioner
Fitment: Ford and Mercury, Thunderbird and Cougar
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Overview of Gates DriveAlign Premium OE Automatic Belt Tensioner

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38299) is engineered for reliable accessory drive belt tension in select Ford and Mercury vehicles. Designed specifically for models like the Ford Cougar and Mercury Thunderbird, this tensioner assembly ensures proper belt alignment and consistent performance.

  • Constructed from durable steel for long-lasting strength
  • Compatible with V-ribbed belt systems
  • Single pulley design without flange for smooth operation
  • Outside pulley diameter of 3 inches (76.2 mm) and width of 1.46 inches (37 mm)
  • One mounting hole for secure installation
  • OE exact fit and performance rating
  • Contact surface is smooth on the backside to reduce belt wear

Detailed Product Description

This accessory drive belt tensioner assembly is built with a steel construction to withstand the stresses of continuous engine operation. The pulley features a 3-inch outside diameter and a width of 1.46 inches, designed to accommodate V-ribbed belts commonly used in Ford Cougar and Mercury Thunderbird models. The tensioner includes a single pulley without a flange, which helps maintain proper belt tracking and reduces the risk of belt slippage. The bearing bore inside diameter measures 0.67 inches (17 mm), ensuring compatibility with the vehicle’s mounting hardware. This part is rated as an OE exact replacement, meeting original equipment specifications for fit and function.

DriveAlign Premium OE Automatic Belt Tensioner Product Line

The DriveAlign Premium OE Automatic Belt Tensioner line by Gates focuses on delivering precise belt tension control with components that match original equipment standards. This product line is designed to provide consistent tension and alignment for accessory drive belts, reducing premature belt wear and improving overall engine accessory performance. Part number 38299 is a member of this line, offering a direct replacement solution for Ford Cougar and Mercury Thunderbird vehicles requiring a V-ribbed belt tensioner assembly.

Common Applications and Issues Addressed

  • Maintains proper tension on V-ribbed accessory drive belts
  • Prevents belt slippage and misalignment
  • Reduces noise caused by loose or worn belts
  • Helps avoid premature belt and pulley wear
  • Supports smooth operation of engine accessories such as alternators and power steering pumps

Installation Notes and Tips

  • Ensure the mounting surface is clean and free of debris before installation
  • Verify the bearing bore diameter matches the vehicle’s mounting hardware (0.67 inches / 17 mm)
  • Use proper torque specifications as outlined in the vehicle service manual
  • Inspect the V-ribbed belt for wear and replace if necessary during installation
  • Check pulley alignment after installation to prevent belt tracking issues

Quality Assurance and Warranty

The Gates DriveAlign Premium OE Automatic Belt Tensioner (Part Number 38299) is manufactured to meet original equipment standards, ensuring reliable performance and durability. This part undergoes rigorous quality control testing to verify fit, function, and material integrity. While specific warranty details may vary, Gates products typically come with a limited warranty covering defects in materials and workmanship.

BrandGates
Part Number38299
PositionDriveAlign Premium OE Automatic Belt Tensioner
Bearing Bore Inside Diameter.67
Bearing Bore Inside Diameter17
Bearing Bore Inside Diameter 1 (in).67
Bearing Bore Inside Diameter 1 (mm)17
Belt TypeV-Ribbed
Belt TypeV-Ribbed
Contact SurfaceSmooth/Backside
ContentsTensioner Assy.
MaterialSteel
Mounting Hole Quantity1
OE Comparison RatingOE Exact
Outside Diameter3
Outside Diameter76
Outside Diameter (in)3
Outside Diameter (mm)76.2
Pulley 1 FlangedNo
Pulley 1 FlangedNo
Pulley Quantity1
Width1.46
Width37
Width (in)1.46
Width (mm)37

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1995FordThunderbird3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1994FordThunderbird3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1993FordThunderbird3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1992FordThunderbird3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1991FordThunderbird3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1990FordCougar3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1990FordThunderbird3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1990MercuryCougar3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1989FordThunderbird3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner
1989MercuryCougar3.8LV6GASN/AAttaches To A.C. Mounting Bracket; W/76.2mm Dia. Pulley; DriveAlign Premium OE Automatic Belt Tensioner

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3829949357999087999087AF4SE 6B209 FAF4SZ 6B209 D

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.